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Auto Stereos

put resistance to Chinese autosterioses.

ELECTRONICA CIENTIFICO

980

hace 5 años

greetings to all ... I need help for put resistance to Chinese autosterrays ... the problem is that they do not last long and burn often

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ELECTRONICA CIENTIFICO

980

hace 5 años

My question is this. Can you put a simple resistor at the voltage input? ò an L7812 regulator Ò A ZENER?
but in what way would it be ò with how many amps diodes it would be.
greetings to all ... thanks for the help.

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JoseOrtiz

1.274

hace 5 años

Burns often what? Do not expect quality and durability of such Chinese devices, cheap is expensive.

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ELECTRONICA CIENTIFICO

980

hace 5 años

friend JoseOrtiz. I repair these autos .... and it does not last long again the audio ic burned and some other components that is why I want to lower the voltage so that they work without overheating and so some alternators of the car ò can last longer van vote up to 14volts.
maybe and some way to solve that is why I ask for help ... regards.

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eltoyo

hace 5 años

The 7388 of this radio is very sensitive what you have to do is check the wiring and at the same time as the coils of your speakers.

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ELECTRONICA CIENTIFICO

980

hace 5 años

Fat friends for the help. I have always checked the speakers and the cables have always been very good ....
Now I put a 6 amp diode on the voltage input. See how I'm doing ... or if there's any other idea
Thanks would be very helpful for your help everyone. regards.

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ELECTRONICA CIENTIFICO

980

hace 5 años

the 6 amp diode worked for me ok ... friend's comment
JoseOrtiz is also very helpful, I will always keep him in mind .... eltoyo friend ... he is also very helpful I will keep him in mind.
infinitely thank you for the help.

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JoseOrtiz

1.274

hace 5 años



hace 5 años

Friend if they burn it will be for something else, maybe bad connection, maybe some of the speaker cables have ground contact, also people usually connect more bugles than the IC supports, lowering the ohmiaje causing overheating, the minimum it would be about 4 ohms per channel, the power has nothing to do with it being 14v, the voltage range of these integrated can reach 18v without this causing overheating, in short for me your failure is due to something else and not to what are you pointing ...

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